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Norwegian survey service firm TGS is to start a new survey in the Mauritania, Senegal, The Gambia, Guinea Bissau and Guinea Conakry (MSGBC) Basin, offshore north-west Africa.

The Senegal Ultra-Deep offshore three-dimensional (3D) survey covers an area of 4,500km² equipped with an advanced broadband acquisition set-up. It is being undertaken in partnership with GeoPartners and BGP Prospector, along with full support from the national oil company Petrosen.

This standalone survey borders Jaan 3D seismic survey, which is TGS’ 3D dataset covering the southern portion of the MSGBC Basin. According to the company, the survey will illuminate plays in the ultra-deep levels to build upon the success the basin has experienced with SNE, FAN and Yakaar.

The company said in a press statement: “The project has a 60-day acquisition timeline, with fast-track data available four months after acquisition.  The full dataset will be available by August 2020.”

Earlier this month, TGS and Schlumberger announced a strategic collaboration on a new 3D seismic reimaging project in the Egyptian Red Sea.

TGS CEO Kristian Johansen said: “I am delighted to announce the commencement of Senegal Ultra-Deep, our latest 3D survey that extends our coverage in a region in which we have been active for a decade.

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“The MSGBC Basin has been one of the most exciting of the world’s frontier exploration basins in recent years and this survey will help to further develop opportunities for our customers offshore Senegal.”